[BruCERT] "Wannacry" Ransomware targeting unpatched Windows systems

Background

Major ransomware attack has affected many organizations across the world reportedly including Telefonica in Spain, the National Health Service in the UK, and FedEx in the US. The malware responsible for this attack is a ransomware variant known as 'WannaCry'. BruCERT has not received any local reports of such attacks at the moment. This ransomware has the capability to spread over the network by scanning for vulnerable systems, and infecting them. It then encrypts files on the system, and exhorts a ransom payment in bitcoin for the decryption of files.

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